1270 lines
41 KiB
Dart
1270 lines
41 KiB
Dart
import 'dart:math' as math;
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import 'package:ducafe_ui_core/ducafe_ui_core.dart';
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import 'package:flutter/material.dart';
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import 'package:qr_flutter/qr_flutter.dart';
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import 'package:pj_supermarket_cloud/common/style/xfj_design_tokens.dart';
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import 'package:pj_supermarket_cloud/common/values/constants.dart';
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import 'package:pj_supermarket_cloud/sub_screen/common/models/customer_display_models.dart';
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import 'package:pj_supermarket_cloud/sub_screen/common/utils/customer_display_coordinator.dart';
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import 'package:pj_supermarket_cloud/sub_screen/page/customer_welcome.dart';
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/// 真实副屏和模拟器预览共用的顾客结算屏。
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class CustomerDisplayPage extends StatelessWidget {
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const CustomerDisplayPage({
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super.key,
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required this.coordinator,
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this.previewMode = false,
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this.onExit,
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});
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final CustomerDisplayCoordinator coordinator;
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final bool previewMode;
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final VoidCallback? onExit;
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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backgroundColor: XfjDesignTokens.canvas,
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body: Stack(
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children: [
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Positioned.fill(
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child: AnimatedBuilder(
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animation: coordinator,
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builder: (context, _) {
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final state = coordinator.state;
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if (state.scenario == CustomerDisplayScenario.idle) {
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return const CustomerWelcomePage();
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}
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return _CustomerDisplayView(state: state);
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},
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),
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),
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if (previewMode)
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Positioned(
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top: 16,
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right: 16,
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child: SafeArea(
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child: Semantics(
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button: true,
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label: '退出顾客屏预览',
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child: Material(
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color: const Color(0xD9111827),
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borderRadius: BorderRadius.circular(12),
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child: InkWell(
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onTap: onExit,
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borderRadius: BorderRadius.circular(12),
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child: const SizedBox(
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width: 118,
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height: 48,
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child: Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(Icons.close_fullscreen_rounded,
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color: Colors.white, size: 20),
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SizedBox(width: 8),
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Text(
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'退出预览',
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style: TextStyle(
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color: Colors.white,
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fontWeight: FontWeight.w700,
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),
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),
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],
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),
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),
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),
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),
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),
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),
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),
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],
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),
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);
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}
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}
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class _CustomerDisplayView extends StatelessWidget {
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const _CustomerDisplayView({required this.state});
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final CustomerDisplayState state;
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@override
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Widget build(BuildContext context) {
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return LayoutBuilder(
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builder: (context, constraints) {
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final scale = math
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.min(constraints.maxWidth / 1920, constraints.maxHeight / 1080)
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.clamp(0.55, 1.12)
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.toDouble();
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final padding = 24.0 * scale;
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final gap = 16.0 * scale;
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return ColoredBox(
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key: ValueKey('customer-scenario-${state.scenario.name}'),
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color: XfjDesignTokens.canvas,
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child: SafeArea(
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child: Padding(
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padding: EdgeInsets.all(padding),
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child: Column(
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children: [
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_Header(state: state, scale: scale),
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SizedBox(height: gap),
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Expanded(
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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Expanded(
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flex: 12,
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child: _ProductPanel(state: state, scale: scale),
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),
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SizedBox(width: gap),
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Expanded(
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flex: 8,
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child: _SettlementPanel(state: state, scale: scale),
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),
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],
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),
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),
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],
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),
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),
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),
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);
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},
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);
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}
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}
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class _Header extends StatelessWidget {
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const _Header({required this.state, required this.scale});
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final CustomerDisplayState state;
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final double scale;
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@override
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Widget build(BuildContext context) {
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return Container(
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height: 82 * scale,
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padding: EdgeInsets.symmetric(horizontal: 18 * scale),
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decoration: _surfaceDecoration(radius: 16 * scale),
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child: Row(
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children: [
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Container(
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width: 46 * scale,
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height: 46 * scale,
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alignment: Alignment.center,
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decoration: BoxDecoration(
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color: XfjDesignTokens.primary,
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borderRadius: BorderRadius.circular(13 * scale),
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),
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child: Text(
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'Z',
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style: TextStyle(
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color: Colors.white,
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fontSize: _fontSize(28, scale),
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height: 1,
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fontWeight: FontWeight.w900,
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),
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),
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),
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SizedBox(width: 10 * scale),
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Text(
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state.businessTitle,
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style: TextStyle(
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color: XfjDesignTokens.ink,
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fontSize: _fontSize(28, scale),
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height: 1,
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fontWeight: FontWeight.w800,
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),
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),
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const Spacer(),
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if (state.maskedCustomerName != null) ...[
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_HeaderPill(
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icon: Icons.person_outline_rounded,
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label: '${state.maskedCustomerName}，您好',
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color: XfjDesignTokens.primary,
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scale: scale,
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),
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SizedBox(width: 10 * scale),
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],
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_HeaderPill(
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icon: state.connected
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? Icons.desktop_windows_outlined
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: Icons.desktop_access_disabled_outlined,
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label: state.connected ? '设备已连接' : '设备未连接',
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color: state.connected
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? XfjDesignTokens.success
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: XfjDesignTokens.warning,
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scale: scale,
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),
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],
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),
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);
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}
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}
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class _HeaderPill extends StatelessWidget {
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const _HeaderPill({
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required this.icon,
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required this.label,
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required this.color,
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required this.scale,
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});
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final IconData icon;
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final String label;
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final Color color;
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final double scale;
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@override
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Widget build(BuildContext context) {
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return Container(
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constraints: BoxConstraints(minHeight: 42 * scale),
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padding: EdgeInsets.symmetric(horizontal: 10 * scale),
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decoration: BoxDecoration(
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color: color.withValues(alpha: 0.08),
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border: Border.all(color: color.withValues(alpha: 0.22)),
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borderRadius: BorderRadius.circular(22 * scale),
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),
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child: Row(
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children: [
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Icon(icon, color: color, size: 22 * scale),
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SizedBox(width: 5 * scale),
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Text(
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label,
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style: TextStyle(
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color: color,
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fontSize: _fontSize(18, scale),
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height: 1,
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fontWeight: FontWeight.w700,
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),
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),
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],
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),
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);
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}
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}
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/// 副屏商品核对面板，集中展示商品明细、同步状态和顾客提示。
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class _ProductPanel extends StatelessWidget {
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/// 创建读取当前顾客屏状态的商品核对面板。
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const _ProductPanel({required this.state, required this.scale});
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/// 副屏协调器产出的当前结算展示状态。
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final CustomerDisplayState state;
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/// 依据副屏分辨率计算的统一缩放比例。
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final double scale;
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/// 构建适合远距离核对的商品区域，并在商品较多时保留纵向滚动能力。
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@override
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Widget build(BuildContext context) {
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final isPaymentSuccess = state.scenario == CustomerDisplayScenario.success;
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return Container(
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decoration: _surfaceDecoration(radius: 16 * scale),
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child: Column(
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children: [
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Padding(
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padding: EdgeInsets.fromLTRB(
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14 * scale,
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12 * scale,
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14 * scale,
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10 * scale,
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),
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child: Row(
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children: [
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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state.products.isEmpty
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? '欢迎光临'
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: isPaymentSuccess
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? '本次购买商品'
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: '请核对商品信息',
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style: TextStyle(
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color: XfjDesignTokens.ink,
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fontSize: _fontSize(34, scale),
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fontWeight: FontWeight.w800,
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),
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),
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SizedBox(height: 2 * scale),
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Text(
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state.products.isEmpty
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? '商品加入购物车后将在这里实时展示'
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: isPaymentSuccess
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? '支付已完成，${state.countdownSeconds} 秒后自动清屏'
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: '本次消费共 ${state.products.length} 项商品',
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style: TextStyle(
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color: XfjDesignTokens.muted,
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fontSize: _fontSize(22, scale),
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),
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),
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],
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),
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),
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_StatusBadge(scenario: state.scenario, scale: scale),
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],
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),
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),
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Divider(height: 1, color: XfjDesignTokens.line),
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if (state.products.isEmpty)
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Expanded(child: _EmptyProducts(scale: scale))
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else ...[
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_ProductHeader(scale: scale),
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Expanded(
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child: ListView.separated(
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padding: EdgeInsets.zero,
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itemCount: state.products.length,
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separatorBuilder: (_, __) =>
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Divider(height: 1, color: XfjDesignTokens.line),
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itemBuilder: (context, index) => _ProductRow(
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product: state.products[index],
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scale: scale,
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),
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),
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),
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],
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Container(
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width: double.infinity,
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padding: EdgeInsets.symmetric(
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horizontal: 14 * scale,
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vertical: 8 * scale,
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),
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decoration: const BoxDecoration(
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color: Color(0xFFFAFAFB),
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border: Border(top: BorderSide(color: XfjDesignTokens.line)),
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),
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child: Text(
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isPaymentSuccess
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? '本次支付已完成，请带好您的商品，感谢您的使用'
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: '商品和金额由收银员实时更新，如有疑问请及时告知收银员',
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style: TextStyle(
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color: XfjDesignTokens.muted,
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fontSize: _fontSize(18, scale),
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),
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),
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),
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],
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),
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);
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}
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}
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class _EmptyProducts extends StatelessWidget {
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const _EmptyProducts({required this.scale});
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final double scale;
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@override
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Widget build(BuildContext context) {
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return Center(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Container(
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width: 92 * scale,
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height: 92 * scale,
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alignment: Alignment.center,
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decoration: const BoxDecoration(
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color: XfjDesignTokens.primarySoft,
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shape: BoxShape.circle,
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),
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child: Icon(
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Icons.shopping_basket_outlined,
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color: XfjDesignTokens.primary,
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size: 46 * scale,
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),
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),
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SizedBox(height: 18 * scale),
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Text(
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'等待添加商品',
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style: TextStyle(
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color: XfjDesignTokens.ink,
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fontSize: _fontSize(30, scale),
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fontWeight: FontWeight.w800,
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),
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),
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SizedBox(height: 6 * scale),
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Text(
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'请将商品交给收银员进行结算',
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style: TextStyle(
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color: XfjDesignTokens.muted,
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fontSize: _fontSize(20, scale),
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),
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),
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],
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),
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);
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}
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}
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/// 副屏商品列表表头，与商品行共享相同的列宽比例。
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class _ProductHeader extends StatelessWidget {
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/// 创建当前分辨率下的商品列表表头。
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const _ProductHeader({required this.scale});
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/// 依据副屏分辨率计算的统一缩放比例。
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final double scale;
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/// 构建商品、数量或重量、单价和小计四列表头。
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@override
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Widget build(BuildContext context) {
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return Container(
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height: 42 * scale,
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padding: EdgeInsets.symmetric(horizontal: 10 * scale),
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color: const Color(0xFFFAFAFB),
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child: Row(
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children: [
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_tableText('商品', 5, scale, align: TextAlign.left),
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_tableText('数量 / 重量', 2, scale),
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_tableText('单价', 2, scale),
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_tableText('小计', 2, scale),
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],
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),
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);
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}
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}
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/// 副屏商品列表中的单条商品记录，可选展示套餐组成。
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class _ProductRow extends StatelessWidget {
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/// 创建一条可同时展示主商品和套餐组成的副屏商品行。
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const _ProductRow({required this.product, required this.scale});
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/// 当前主商品及其可选套餐组成。
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final CustomerDisplayProduct product;
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/// 基于副屏分辨率计算的统一缩放比例。
|
||
final double scale;
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/// 构建主商品表格行，并在套餐下方追加不参与计价的组成明细。
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@override
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Widget build(BuildContext context) {
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return ConstrainedBox(
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// 单品行按当前副屏可视区容纳 10 条设置高度，字号放大后通过收紧内边距避免溢出。
|
||
constraints: BoxConstraints(minHeight: 72 * scale),
|
||
child: Padding(
|
||
padding:
|
||
EdgeInsets.symmetric(horizontal: 10 * scale, vertical: 3 * scale),
|
||
child: Column(
|
||
mainAxisAlignment: MainAxisAlignment.center,
|
||
crossAxisAlignment: CrossAxisAlignment.stretch,
|
||
children: [
|
||
Row(
|
||
children: [
|
||
Expanded(
|
||
flex: 5,
|
||
child: Row(
|
||
children: [
|
||
_ProductImage(product: product, scale: scale),
|
||
SizedBox(width: 6 * scale),
|
||
_ProductTypeBadge(
|
||
isCombo: product.isCombo,
|
||
scale: scale,
|
||
),
|
||
SizedBox(width: 5 * scale),
|
||
Expanded(
|
||
child: Text(
|
||
product.name,
|
||
maxLines: 1,
|
||
overflow: TextOverflow.ellipsis,
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.ink,
|
||
fontSize: _fontSize(28, scale),
|
||
fontWeight: FontWeight.w700,
|
||
),
|
||
),
|
||
),
|
||
],
|
||
),
|
||
),
|
||
_valueCell(product.quantityLabel, 2, scale),
|
||
_valueCell(_money(product.unitPrice), 2, scale),
|
||
_valueCell(
|
||
_money(product.totalPrice),
|
||
2,
|
||
scale,
|
||
emphasized: true,
|
||
),
|
||
],
|
||
),
|
||
if (product.isCombo && product.comboItems.isNotEmpty) ...[
|
||
SizedBox(height: 6 * scale),
|
||
_ComboContents(product: product, scale: scale),
|
||
],
|
||
],
|
||
),
|
||
),
|
||
);
|
||
}
|
||
}
|
||
|
||
/// 商品行左侧的固定尺寸图片，网络加载与失败时均保持行高稳定。
|
||
class _ProductImage extends StatelessWidget {
|
||
/// 创建使用当前商品图片来源的顾客屏缩略图。
|
||
const _ProductImage({required this.product, required this.scale});
|
||
|
||
/// 当前商品，用于读取图片来源、占位首字和无障碍说明。
|
||
final CustomerDisplayProduct product;
|
||
|
||
/// 依据副屏分辨率计算的几何缩放比例。
|
||
final double scale;
|
||
|
||
/// 构建真实商品图片；副屏 Engine 不依赖磁盘缓存插件，使用 Flutter 原生网络图片缓存。
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
final imageSource = product.imageSource;
|
||
final imageSize = 60 * scale;
|
||
final placeholder = _buildPlaceholder();
|
||
return Semantics(
|
||
image: true,
|
||
label: '${product.name}商品图片',
|
||
child: ClipRRect(
|
||
borderRadius: BorderRadius.circular(7 * scale),
|
||
child: SizedBox(
|
||
key: ValueKey('customer-product-image-${product.name}'),
|
||
width: imageSize,
|
||
height: imageSize,
|
||
child: imageSource == null
|
||
? placeholder
|
||
: Image.network(
|
||
_productImageUrl(imageSource),
|
||
fit: BoxFit.cover,
|
||
loadingBuilder: (context, child, loadingProgress) =>
|
||
loadingProgress == null ? child : placeholder,
|
||
errorBuilder: (context, error, stackTrace) => placeholder,
|
||
),
|
||
),
|
||
),
|
||
);
|
||
}
|
||
|
||
/// 为无图片、加载中和加载失败场景生成一致的名称首字占位。
|
||
Widget _buildPlaceholder() {
|
||
final trimmedName = product.name.trim();
|
||
final shortLabel = trimmedName.isEmpty ? '商' : trimmedName.substring(0, 1);
|
||
return ColoredBox(
|
||
color: XfjDesignTokens.control,
|
||
child: Center(
|
||
child: Text(
|
||
shortLabel,
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.muted,
|
||
fontSize: _fontSize(22, scale),
|
||
fontWeight: FontWeight.w800,
|
||
),
|
||
),
|
||
),
|
||
);
|
||
}
|
||
}
|
||
|
||
/// 副屏主商品类型标识，帮助顾客快速区分单品和套餐。
|
||
class _ProductTypeBadge extends StatelessWidget {
|
||
/// 创建商品类型标识。
|
||
const _ProductTypeBadge({required this.isCombo, required this.scale});
|
||
|
||
/// 是否展示为套餐标识。
|
||
final bool isCombo;
|
||
|
||
/// 基于副屏分辨率计算的统一缩放比例。
|
||
final double scale;
|
||
|
||
/// 构建紧凑且不抢占商品名称空间的类型标识。
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
final foreground =
|
||
isCombo ? XfjDesignTokens.primary : XfjDesignTokens.muted;
|
||
final background =
|
||
isCombo ? XfjDesignTokens.primarySoft : XfjDesignTokens.control;
|
||
return DecoratedBox(
|
||
decoration: BoxDecoration(
|
||
color: background,
|
||
borderRadius: BorderRadius.circular(4 * scale),
|
||
),
|
||
child: Padding(
|
||
padding: EdgeInsets.symmetric(
|
||
horizontal: 5 * scale,
|
||
vertical: 2 * scale,
|
||
),
|
||
child: Text(
|
||
isCombo ? '套餐' : '单品',
|
||
style: TextStyle(
|
||
color: foreground,
|
||
fontSize: _fontSize(18, scale),
|
||
fontWeight: FontWeight.w700,
|
||
),
|
||
),
|
||
),
|
||
);
|
||
}
|
||
}
|
||
|
||
/// 套餐主商品下方的组成明细带，展示每套菜品名称和份数但不重复展示金额。
|
||
class _ComboContents extends StatelessWidget {
|
||
/// 创建指定套餐的组成明细带。
|
||
const _ComboContents({required this.product, required this.scale});
|
||
|
||
/// 当前套餐主商品，组成列表非空时才会创建本组件。
|
||
final CustomerDisplayProduct product;
|
||
|
||
/// 基于副屏分辨率计算的统一缩放比例。
|
||
final double scale;
|
||
|
||
/// 构建套餐汇总说明及逐项组成，长名称在当前行内截断以保持列宽稳定。
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
final totalQuantity = product.comboItems.fold<int>(
|
||
0,
|
||
(total, item) => total + item.quantity,
|
||
);
|
||
return Container(
|
||
key: ValueKey('combo-details-${product.name}'),
|
||
padding: EdgeInsets.fromLTRB(
|
||
10 * scale,
|
||
6 * scale,
|
||
10 * scale,
|
||
7 * scale,
|
||
),
|
||
decoration: const BoxDecoration(
|
||
color: XfjDesignTokens.primarySoft,
|
||
border: Border(
|
||
left: BorderSide(color: XfjDesignTokens.primary, width: 3),
|
||
),
|
||
),
|
||
child: Column(
|
||
crossAxisAlignment: CrossAxisAlignment.stretch,
|
||
children: [
|
||
Row(
|
||
children: [
|
||
Icon(
|
||
Icons.layers_outlined,
|
||
size: 18 * scale,
|
||
color: XfjDesignTokens.primary,
|
||
),
|
||
SizedBox(width: 5 * scale),
|
||
Expanded(
|
||
child: Text(
|
||
'套餐内含 · 每套 ${product.comboItems.length} 样 / $totalQuantity 份',
|
||
maxLines: 1,
|
||
overflow: TextOverflow.ellipsis,
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.primary,
|
||
fontSize: _fontSize(20, scale),
|
||
fontWeight: FontWeight.w800,
|
||
),
|
||
),
|
||
),
|
||
SizedBox(width: 8 * scale),
|
||
Text(
|
||
'明细不单独计价',
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.muted,
|
||
fontSize: _fontSize(18, scale),
|
||
fontWeight: FontWeight.w600,
|
||
),
|
||
),
|
||
],
|
||
),
|
||
for (final item in product.comboItems)
|
||
Padding(
|
||
padding: EdgeInsets.only(top: 5 * scale),
|
||
child: Row(
|
||
children: [
|
||
Icon(
|
||
Icons.subdirectory_arrow_right_rounded,
|
||
size: 17 * scale,
|
||
color: XfjDesignTokens.muted,
|
||
),
|
||
SizedBox(width: 5 * scale),
|
||
Expanded(
|
||
child: Text(
|
||
item.name,
|
||
maxLines: 1,
|
||
overflow: TextOverflow.ellipsis,
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.ink,
|
||
fontSize: _fontSize(21, scale),
|
||
fontWeight: FontWeight.w600,
|
||
),
|
||
),
|
||
),
|
||
SizedBox(width: 8 * scale),
|
||
Text(
|
||
'×${item.quantity}',
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.ink,
|
||
fontSize: _fontSize(21, scale),
|
||
fontWeight: FontWeight.w800,
|
||
fontFeatures: const [FontFeature.tabularFigures()],
|
||
),
|
||
),
|
||
],
|
||
),
|
||
),
|
||
],
|
||
),
|
||
);
|
||
}
|
||
}
|
||
|
||
/// 按商品表格的列宽比例渲染表头文本。
|
||
Widget _tableText(
|
||
String value,
|
||
int flex,
|
||
double scale, {
|
||
TextAlign align = TextAlign.center,
|
||
}) {
|
||
return Expanded(
|
||
flex: flex,
|
||
child: Text(
|
||
value,
|
||
textAlign: align,
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.muted,
|
||
fontSize: _fontSize(20, scale),
|
||
fontWeight: FontWeight.w700,
|
||
),
|
||
),
|
||
);
|
||
}
|
||
|
||
/// 按商品表格的列宽比例渲染数量或金额，并保持数字宽度稳定。
|
||
Widget _valueCell(
|
||
String value,
|
||
int flex,
|
||
double scale, {
|
||
bool emphasized = false,
|
||
}) {
|
||
return Expanded(
|
||
flex: flex,
|
||
child: Text(
|
||
value,
|
||
textAlign: TextAlign.center,
|
||
style: TextStyle(
|
||
color: emphasized ? XfjDesignTokens.ink : XfjDesignTokens.muted,
|
||
fontSize: _fontSize(26, scale),
|
||
fontWeight: emphasized ? FontWeight.w800 : FontWeight.w600,
|
||
fontFeatures: const [FontFeature.tabularFigures()],
|
||
),
|
||
),
|
||
);
|
||
}
|
||
|
||
class _SettlementPanel extends StatelessWidget {
|
||
const _SettlementPanel({required this.state, required this.scale});
|
||
|
||
final CustomerDisplayState state;
|
||
final double scale;
|
||
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
return Container(
|
||
padding: EdgeInsets.all(16 * scale),
|
||
decoration: _surfaceDecoration(radius: 16 * scale),
|
||
child: Column(
|
||
crossAxisAlignment: CrossAxisAlignment.stretch,
|
||
children: [
|
||
Text(
|
||
'实际扣款',
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.muted,
|
||
fontSize: _fontSize(20, scale),
|
||
fontWeight: FontWeight.w700,
|
||
),
|
||
),
|
||
SizedBox(height: 6 * scale),
|
||
Text(
|
||
_money(state.payablePrice),
|
||
key: const ValueKey('customer-payable-price'),
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.primary,
|
||
fontSize: _fontSize(64, scale),
|
||
height: 1.05,
|
||
fontWeight: FontWeight.w900,
|
||
fontFeatures: const [FontFeature.tabularFigures()],
|
||
),
|
||
),
|
||
SizedBox(height: 12 * scale),
|
||
_PriceLine(label: '商品总价', price: state.totalPrice, scale: scale),
|
||
SizedBox(height: 7 * scale),
|
||
_PriceLine(
|
||
label: '额外支付',
|
||
price: state.amountMealPrice,
|
||
scale: scale,
|
||
),
|
||
Padding(
|
||
padding: EdgeInsets.symmetric(vertical: 14 * scale),
|
||
child: Divider(height: 1, color: XfjDesignTokens.line),
|
||
),
|
||
Expanded(child: _PaymentStatePanel(state: state, scale: scale)),
|
||
SizedBox(height: 14 * scale),
|
||
_CheckoutSteps(current: state.scenario, scale: scale),
|
||
],
|
||
),
|
||
);
|
||
}
|
||
}
|
||
|
||
class _PriceLine extends StatelessWidget {
|
||
const _PriceLine({
|
||
required this.label,
|
||
required this.price,
|
||
required this.scale,
|
||
});
|
||
|
||
final String label;
|
||
final int price;
|
||
final double scale;
|
||
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
return Row(
|
||
mainAxisAlignment: MainAxisAlignment.spaceBetween,
|
||
children: [
|
||
Text(
|
||
label,
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.muted,
|
||
fontSize: _fontSize(22, scale),
|
||
fontWeight: FontWeight.w600,
|
||
),
|
||
),
|
||
Text(
|
||
_money(price),
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.ink,
|
||
fontSize: _fontSize(26, scale),
|
||
fontWeight: FontWeight.w800,
|
||
fontFeatures: const [FontFeature.tabularFigures()],
|
||
),
|
||
),
|
||
],
|
||
);
|
||
}
|
||
}
|
||
|
||
/// 副屏结算状态主体，分别展示支付码、支付结果和顾客下一步指引。
|
||
class _PaymentStatePanel extends StatelessWidget {
|
||
/// 创建读取当前结算状态的右侧展示区域。
|
||
const _PaymentStatePanel({required this.state, required this.scale});
|
||
|
||
/// 副屏协调器提供的订单金额、支付场景和倒计时快照。
|
||
final CustomerDisplayState state;
|
||
|
||
/// 依据副屏分辨率计算的几何缩放比例。
|
||
final double scale;
|
||
|
||
/// 根据支付场景构建二维码、成功页或取消和超时提示。
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
if (state.scenario == CustomerDisplayScenario.paying &&
|
||
state.qrCodeData != null) {
|
||
return LayoutBuilder(
|
||
builder: (context, constraints) {
|
||
final qrSize = math.min(
|
||
constraints.maxWidth * 0.54,
|
||
constraints.maxHeight * 0.6,
|
||
);
|
||
// 主屏调试预览可能只有 800×600；仅在极矮区域收拢辅助说明，金额、倒计时和主提示仍保持大字号。
|
||
final compactPaymentHint = constraints.maxHeight < 180;
|
||
return Row(
|
||
children: [
|
||
Container(
|
||
padding: EdgeInsets.all(10 * scale),
|
||
decoration: BoxDecoration(
|
||
color: Colors.white,
|
||
border: Border.all(color: XfjDesignTokens.line),
|
||
borderRadius: BorderRadius.circular(14 * scale),
|
||
),
|
||
child: QrImageView(
|
||
data: state.qrCodeData!,
|
||
version: QrVersions.auto,
|
||
size: qrSize,
|
||
padding: EdgeInsets.zero,
|
||
),
|
||
),
|
||
SizedBox(width: 18 * scale),
|
||
Expanded(
|
||
child: Column(
|
||
mainAxisAlignment: MainAxisAlignment.center,
|
||
crossAxisAlignment: CrossAxisAlignment.start,
|
||
children: [
|
||
Text(
|
||
'请扫码支付',
|
||
maxLines: 1,
|
||
overflow: TextOverflow.ellipsis,
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.ink,
|
||
fontSize: _fontSize(34, scale),
|
||
height: 1,
|
||
fontWeight: FontWeight.w900,
|
||
),
|
||
),
|
||
SizedBox(height: 6 * scale),
|
||
Text(
|
||
_countdown(state.countdownSeconds),
|
||
key: const ValueKey('customer-payment-countdown'),
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.danger,
|
||
fontSize: _fontSize(44, scale),
|
||
height: 1,
|
||
fontWeight: FontWeight.w900,
|
||
fontFeatures: const [FontFeature.tabularFigures()],
|
||
),
|
||
),
|
||
SizedBox(height: 5 * scale),
|
||
Text(
|
||
'支付完成后请勿重复扫码',
|
||
maxLines: compactPaymentHint ? 1 : 2,
|
||
overflow: TextOverflow.ellipsis,
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.muted,
|
||
fontSize: _fontSize(20, scale),
|
||
height: 1.2,
|
||
),
|
||
),
|
||
],
|
||
),
|
||
),
|
||
],
|
||
);
|
||
},
|
||
);
|
||
}
|
||
|
||
if (state.scenario == CustomerDisplayScenario.success) {
|
||
final successColor = XfjDesignTokens.success;
|
||
return Semantics(
|
||
label: '支付成功，${state.countdownSeconds} 秒后自动清屏',
|
||
child: DecoratedBox(
|
||
key: const ValueKey('customer-payment-success'),
|
||
decoration: BoxDecoration(
|
||
color: successColor.withValues(alpha: 0.07),
|
||
border: Border.all(color: successColor.withValues(alpha: 0.24)),
|
||
borderRadius: BorderRadius.circular(16 * scale),
|
||
),
|
||
child: <Widget>[
|
||
Container(
|
||
width: 86 * scale,
|
||
height: 86 * scale,
|
||
alignment: Alignment.center,
|
||
decoration: BoxDecoration(
|
||
color: successColor,
|
||
shape: BoxShape.circle,
|
||
),
|
||
child: Icon(
|
||
Icons.check_rounded,
|
||
color: Colors.white,
|
||
size: 50 * scale,
|
||
),
|
||
),
|
||
Text(
|
||
'支付成功',
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.ink,
|
||
fontSize: _fontSize(52, scale),
|
||
height: 1,
|
||
fontWeight: FontWeight.w900,
|
||
),
|
||
),
|
||
Text(
|
||
'请带好您的商品',
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.muted,
|
||
fontSize: _fontSize(27, scale),
|
||
height: 1.15,
|
||
fontWeight: FontWeight.w700,
|
||
),
|
||
),
|
||
Text.rich(
|
||
TextSpan(
|
||
children: [
|
||
TextSpan(
|
||
text: '${state.countdownSeconds}',
|
||
style: TextStyle(
|
||
color: successColor,
|
||
fontSize: _fontSize(48, scale),
|
||
fontWeight: FontWeight.w900,
|
||
),
|
||
),
|
||
TextSpan(
|
||
text: ' 秒后自动清屏',
|
||
style: TextStyle(
|
||
color: successColor,
|
||
fontSize: _fontSize(25, scale),
|
||
fontWeight: FontWeight.w800,
|
||
),
|
||
),
|
||
],
|
||
),
|
||
key: const ValueKey('customer-success-countdown'),
|
||
textAlign: TextAlign.center,
|
||
style: const TextStyle(
|
||
fontFeatures: [FontFeature.tabularFigures()],
|
||
),
|
||
),
|
||
]
|
||
.toColumnSpace(
|
||
mainAxisAlignment: MainAxisAlignment.center,
|
||
mainAxisSize: MainAxisSize.min,
|
||
space: 12 * scale,
|
||
)
|
||
.padding(horizontal: 18 * scale, vertical: 14 * scale),
|
||
),
|
||
);
|
||
}
|
||
|
||
final visual = _scenarioVisual(state.scenario);
|
||
return Container(
|
||
alignment: Alignment.center,
|
||
decoration: BoxDecoration(
|
||
color: visual.color.withValues(alpha: 0.06),
|
||
border: Border.all(color: visual.color.withValues(alpha: 0.2)),
|
||
borderRadius: BorderRadius.circular(16 * scale),
|
||
),
|
||
child: Column(
|
||
mainAxisSize: MainAxisSize.min,
|
||
children: [
|
||
Container(
|
||
width: 68 * scale,
|
||
height: 68 * scale,
|
||
alignment: Alignment.center,
|
||
decoration: BoxDecoration(
|
||
color: visual.color,
|
||
shape: BoxShape.circle,
|
||
),
|
||
child: Icon(visual.icon, color: Colors.white, size: 36 * scale),
|
||
),
|
||
SizedBox(height: 10 * scale),
|
||
Text(
|
||
visual.title,
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.ink,
|
||
fontSize: _fontSize(36, scale),
|
||
height: 1,
|
||
fontWeight: FontWeight.w900,
|
||
),
|
||
),
|
||
SizedBox(height: 5 * scale),
|
||
Padding(
|
||
padding: EdgeInsets.symmetric(horizontal: 20 * scale),
|
||
child: Text(
|
||
visual.description,
|
||
textAlign: TextAlign.center,
|
||
maxLines: 2,
|
||
overflow: TextOverflow.ellipsis,
|
||
style: TextStyle(
|
||
color: XfjDesignTokens.muted,
|
||
fontSize: _fontSize(22, scale),
|
||
height: 1.2,
|
||
),
|
||
),
|
||
),
|
||
],
|
||
),
|
||
);
|
||
}
|
||
}
|
||
|
||
class _CheckoutSteps extends StatelessWidget {
|
||
const _CheckoutSteps({required this.current, required this.scale});
|
||
|
||
final CustomerDisplayScenario current;
|
||
final double scale;
|
||
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
final activeStep = switch (current) {
|
||
CustomerDisplayScenario.idle => 0,
|
||
CustomerDisplayScenario.review => 1,
|
||
CustomerDisplayScenario.paying => 2,
|
||
_ => 3,
|
||
};
|
||
return Row(
|
||
children: [
|
||
_Step(index: 1, label: '核对商品', active: activeStep >= 1, scale: scale),
|
||
_Step(index: 2, label: '完成支付', active: activeStep >= 2, scale: scale),
|
||
_Step(index: 3, label: '带走商品', active: activeStep >= 3, scale: scale),
|
||
],
|
||
);
|
||
}
|
||
}
|
||
|
||
class _Step extends StatelessWidget {
|
||
const _Step({
|
||
required this.index,
|
||
required this.label,
|
||
required this.active,
|
||
required this.scale,
|
||
});
|
||
|
||
final int index;
|
||
final String label;
|
||
final bool active;
|
||
final double scale;
|
||
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
return Expanded(
|
||
child: Column(
|
||
children: [
|
||
Container(
|
||
width: 30 * scale,
|
||
height: 30 * scale,
|
||
alignment: Alignment.center,
|
||
decoration: BoxDecoration(
|
||
color: active ? XfjDesignTokens.primary : XfjDesignTokens.control,
|
||
shape: BoxShape.circle,
|
||
),
|
||
child: Text(
|
||
'$index',
|
||
style: TextStyle(
|
||
color: active ? Colors.white : XfjDesignTokens.muted,
|
||
fontSize: _fontSize(18, scale),
|
||
fontWeight: FontWeight.w800,
|
||
),
|
||
),
|
||
),
|
||
SizedBox(height: 5 * scale),
|
||
Text(
|
||
label,
|
||
style: TextStyle(
|
||
color: active ? XfjDesignTokens.ink : XfjDesignTokens.muted,
|
||
fontSize: _fontSize(18, scale),
|
||
fontWeight: FontWeight.w600,
|
||
),
|
||
),
|
||
],
|
||
),
|
||
);
|
||
}
|
||
}
|
||
|
||
/// 商品面板顶部的结算阶段标签，用图标和文字同时表达当前状态。
|
||
class _StatusBadge extends StatelessWidget {
|
||
/// 创建与当前顾客屏场景对应的状态标签。
|
||
const _StatusBadge({required this.scenario, required this.scale});
|
||
|
||
/// 当前结算场景，决定标签的文案、图标和语义颜色。
|
||
final CustomerDisplayScenario scenario;
|
||
|
||
/// 依据副屏分辨率计算的统一缩放比例。
|
||
final double scale;
|
||
|
||
/// 构建紧凑但可远距离识别的商品核对状态标签。
|
||
@override
|
||
Widget build(BuildContext context) {
|
||
final visual = _scenarioVisual(scenario);
|
||
return Container(
|
||
padding: EdgeInsets.symmetric(horizontal: 8 * scale, vertical: 4 * scale),
|
||
decoration: BoxDecoration(
|
||
color: visual.color.withValues(alpha: 0.08),
|
||
borderRadius: BorderRadius.circular(18 * scale),
|
||
),
|
||
child: Row(
|
||
children: [
|
||
Icon(visual.icon, color: visual.color, size: 20 * scale),
|
||
SizedBox(width: 4 * scale),
|
||
Text(
|
||
scenario.title,
|
||
style: TextStyle(
|
||
color: visual.color,
|
||
fontSize: _fontSize(20, scale),
|
||
fontWeight: FontWeight.w700,
|
||
),
|
||
),
|
||
],
|
||
),
|
||
);
|
||
}
|
||
}
|
||
|
||
class _ScenarioVisual {
|
||
const _ScenarioVisual({
|
||
required this.title,
|
||
required this.description,
|
||
required this.icon,
|
||
required this.color,
|
||
});
|
||
|
||
final String title;
|
||
final String description;
|
||
final IconData icon;
|
||
final Color color;
|
||
}
|
||
|
||
_ScenarioVisual _scenarioVisual(CustomerDisplayScenario scenario) {
|
||
return switch (scenario) {
|
||
CustomerDisplayScenario.idle => const _ScenarioVisual(
|
||
title: '欢迎使用',
|
||
description: '请将商品交给收银员，结算信息会实时显示在这里',
|
||
icon: Icons.waving_hand_outlined,
|
||
color: XfjDesignTokens.primary,
|
||
),
|
||
CustomerDisplayScenario.review => const _ScenarioVisual(
|
||
title: '请核对商品',
|
||
description: '请确认商品、数量和金额，确认无误后由收银员发起支付',
|
||
icon: Icons.receipt_long_outlined,
|
||
color: XfjDesignTokens.primary,
|
||
),
|
||
CustomerDisplayScenario.paying => const _ScenarioVisual(
|
||
title: '请扫码支付',
|
||
description: '请在倒计时结束前完成支付',
|
||
icon: Icons.qr_code_2_rounded,
|
||
color: XfjDesignTokens.primary,
|
||
),
|
||
CustomerDisplayScenario.success => const _ScenarioVisual(
|
||
title: '支付成功',
|
||
description: '本次支付已完成，请带好商品，感谢您的使用',
|
||
icon: Icons.check_rounded,
|
||
color: XfjDesignTokens.success,
|
||
),
|
||
CustomerDisplayScenario.cancelled => const _ScenarioVisual(
|
||
title: '支付已取消',
|
||
description: '本次支付没有完成，请等待收银员重新发起支付',
|
||
icon: Icons.close_rounded,
|
||
color: XfjDesignTokens.danger,
|
||
),
|
||
CustomerDisplayScenario.timeout => const _ScenarioVisual(
|
||
title: '支付已超时',
|
||
description: '二维码已经失效，请等待收银员重新发起支付',
|
||
icon: Icons.schedule_rounded,
|
||
color: XfjDesignTokens.warning,
|
||
),
|
||
};
|
||
}
|
||
|
||
BoxDecoration _surfaceDecoration({required double radius}) {
|
||
return BoxDecoration(
|
||
color: XfjDesignTokens.surface,
|
||
border: Border.all(color: XfjDesignTokens.line),
|
||
borderRadius: BorderRadius.circular(radius),
|
||
boxShadow: XfjDesignTokens.surfaceShadow,
|
||
);
|
||
}
|
||
|
||
String _money(int cents) => '¥ ${(cents / 100).toStringAsFixed(2)}';
|
||
|
||
/// 将文字缩放与布局缩放分离，小尺寸副屏仍保留远距离可读的最低字号。
|
||
double _fontSize(double designSize, double scale) {
|
||
return designSize * math.max(scale, 0.9);
|
||
}
|
||
|
||
/// 将主屏传来的完整地址或 OSS 相对路径转换为副屏可加载的网络地址。
|
||
String _productImageUrl(String source) {
|
||
if (RegExp(r'^https?://', caseSensitive: false).hasMatch(source)) {
|
||
return source;
|
||
}
|
||
final separator = source.startsWith('/') || source.startsWith('?') ? '' : '/';
|
||
return '${Constants.ossUrl}$separator$source';
|
||
}
|
||
|
||
String _countdown(int seconds) {
|
||
final minutes = seconds ~/ 60;
|
||
final remainingSeconds = seconds % 60;
|
||
return '${minutes.toString().padLeft(2, '0')}:${remainingSeconds.toString().padLeft(2, '0')}';
|
||
}
|